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Title: Hydrologic studies of the Glenn Creek drainage basin near Fairbanks, Alaska
Authors: Dingman, S. L.
Keywords: Hydrology
Hydrologic study
Fairbanks, Alaska
Glenn Creek, Alaska
Gleen Creek drainage basin
Frozen ground
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Special report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 86.
Description: Special Report
Summary: A detailed hydrologic study of Glenn Creek, which drains an area of 0. 7 mi^2 lying 8 miles north of Fairbanks, Alaska, was begun in June, 1964. The soil beneath the lower portions of this area is perennially frozen to within a few feet of the surface, and a thick mat of mosses covers much of the surface of the watershed. During the period June-October, rainfall, runoff, dissolved and suspended sediment concentrations, and air and water temperatures were measured. The following observations and tentative conclusions are based on the first summer's study of Glenn Creek and its drainage basin: 1) relationships comprising at-a-station hydraulic geometry are similar to those for larger streams in other areas; 2) the lag time between rainfall and peak storm discharge is much longer for Glenn Creek than for similar-sized streams in mid-latitude regions; 3) hydrograph recessions are drawn out in time relative to those for similar-sized streams in mid-latitude regions; 4) base flow was low in early and mid-summer, rose to a peak in late summer, and very gradually diminished thereafter, accounting for most of the flow in September and October; 5) direct runoff must occur largely as interflow; 6) about 24% of the rain which fell appeared as runoff; 7) the fraction of rainfall appearing as direct runoff varied from 3% to 30%, and showed no seasonal trends; 8) the suspended and dissolved sediment concentrations of Glenn Creek are within the ranges reported for larger streams in the area; 9) suspended sediment yield was roughly five times as large as dissolved sediment yield for June-October. A number of years of study will be required to confirm these preliminary conclusions and to determine the representativeness of the observations.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Special Report

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